In order to make pigs a better mob and allow them to keep up with other livestock, they will now have 2-3 babies when breeding rather than just one. The chance for 3 babies at once is 50%. They also have a 1/256 chance to have 8 babies at once.

History

1.5.1*

Updated the increased pig breeding feature to be more dynamic—if you have a pack that adds more pig variants installed, the additional pigs can be one of the new variants

1.4.0+

Pigs now breed 8 babies at once 1/256th of the time